Canfield, J. (2007). How to Get from Where You are to Where You Want to Be: The 25 Principles of Success. Harper Element An Imprint of HarperCollins Publishers.
Cita Chicago (17th ed.)Canfield, Jack. How to Get from Where You Are to Where You Want to Be: The 25 Principles of Success. London: Harper Element An Imprint of HarperCollins Publishers, 2007.
Cita MLA (9th ed.)Canfield, Jack. How to Get from Where You Are to Where You Want to Be: The 25 Principles of Success. Harper Element An Imprint of HarperCollins Publishers, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.